Wire anchor



March 20, 1928. 1,663,104

' R. T. WALES WIRE ANCHOR Filed May 22. 1936 I 2 Sheets-Shet 1 f] v717/ -Ei.

, INVENTOR .ZMMZMh/ a, I By Attorneys,

March 20, 1928.

R. T. WALES WIRE ANCHOR Filed May 22. 1926 2 Sheets-Sheet 2 INVENTOR Wm;

By Attorneys,

Patented Mar. 20, 1928.

UNITED STATES ROWLAND T. WALES, OF'N-EW ROCHELLE, NEW YORK.

' WIRE ancnon.

Application filed May 22,

cross-bar between the wires at the'middle and by turning it to twist them after the manner of a tourniquet. For both single and doubled wires also screw tightening means have been proposed, but heretofore none of these have been sufliciently effective to se cure wide adoption. The present invention aims to provide an improved construction whereby the tightening is accomplished by means wholly outside of the mold space, and which enables a single wire to be used.

The tie comprises any suitable anchor bearing against one side of the form to' which the wire on that side isfastened, and an anchor on the other side of the form (which may or. may not be like the first anchor), one or both anchors having integral means for gripping the wire to hold it fast, and means for preventing the escape of the wire from such gripping means.

The anchors to. which the present application for patent is directed are commonly used with tightening means by which the wire having been first applied to one anchor on one side of the form, may be tightenedand then attached to the second anchor on the other side of the form. The anchor is provided with the said integralmeans for gripping the wire in order that the wire after being suitably tightened by the op-' eration of thctightener may be transferred to the anchor and gripped by the latter without losing the tension that has been applied to it. The combination of anchor and tightener is claimed in my aforesaid application Serial No. 638,585. to which reference may be made'for a full description of the preferred mode of use of the anchors in connection with the special tightener which is claimed in said application.

The present invention in its preferred form is shown in the accompanying drawing-s. -whcrein,

Figure 1 'is a horizontal section; showing 1926. Serial No. 110,902.

a fragment of a concreting form withthe wire tie in place;

Fig. 2 is a horizontal section of a some what different construction of mold with the wire tie in place;

Fig. 3 is a-front elevation of mold shown in ,Fig. 2;

Fig. 4 1s a perspect ve .view showing one form of anchor;

- Fig. is'a perspective view illustrating another form of anchor which for certain uses is preferable to that shown in Fig. 4; Fig. 6 is a perspective view of a saddle forming part of the structure shown in Fig. 5;

Fig.

Fig. 5. and

V Fig. 8 is a back viewfof the anchor shown.

in Fig.7;

part of the 7 is a transverse section of an anchor of modified construction asxcompared with Fig.9 is aperspective view of another con- 7 struction of anchor'having a saddle which is differently constructed from those in Figs;

5and 7; and

Fig. 10 is .a transverse section of the an-i chor shown in Fig. 9.

Referring first to Figs. 1, 2 and'3, A, and A are the opposite forms constituting the mold for a concrete. wall, the space B be-.

tween these being themold space to be filled withconcrete. Such forms are commonly made with mold boards or panels C C which usually extend horizontally and are held byupright framing or studs D D of wood or metal. In Fig. 1 the studs D D are arranged in pairs. InFig. 2 the upright studsD D are more widely spaced, and outside of them are horizontal stretches of strips E E to .form a bear'ingfor the tie platesor anchors.

With either construction of form a spacing stick F isintroduced atintervals to hold the opposite form plates C C'apart, these sticks beingtaken out as the concrete is filled .intothe' mold. These sticks are preferably placed adjacent to the wire ties G Gwhich hold the oppositeform walls together and resist the outward or bursting strain of the";

concrete.

In either construction the wire clamp construction is the same except for the arrangemerit of the anchors. J and K are anchors or tie plates to which the opposite ends of thetie wire G are fastened. The anchors: J 'K may be=duplicates of one another, as shown. or they may be of different construction." In the construction shown, which is illustrated in detail in Fig. 4, each anchor consists of a base plate a having a flat bearing surface adapted to lie. and bear against the flat outer face of the form (either the outer faces of the studs D D in Fig. 1, or of the strips E E in Figs. 2 and-3;), which plate has an opening Z) through which the wire passes; attached to the plate (L is a suitable form of projection adapted for the attachment thereto of the end portion ofthe wire. In the preferred construction this a-ttach'ing or'cleatportion of the anchor is constructed as a wall projecting from the plate a, at preferably right angles, and having a notch (Z for receiving and engaging the wire, and notches e and f for fastening the wire. The construction is such that the anchor may conveniently and cheaply be made by-cuttingfrom rolled angle iron and punching the holes and notches. The plate a has preferably also a hole g near one end, through which a nail may be driven.

The tie wire G-is connected or attached to each anchor in the manner shown, namely, by passing its end through the opening 1) and bending it down into the notch '07, then bending it to one side and carrying it into the 'notch 'e, thence along the-opposite side and into the notch 7, so that the end portion of the wire is held by the portion 72, "of the waill beyon'd'this notch. ilheopening b and the notch d are both by preference made with tapered sides, so that the-wire being first introduced through theflarger portion isfdrawn between these tapered sides and thereby gripped. y

"Conceivably the wire mightbe thus at tac'hed to both anchors or cleats J, K, and

' the'tie then put in place before the mold is forced ou'tto its full width, and the tightening of the wire accomplished by thus forcingout the mold until the mold space is of a widthequal to the thickness oft'he concrete wall to be formed, which might be accomplished in various ways, the spacing pieces F being driven in near each tie wire to hold the mold until "the concrete is introduced. But -for ordinary concreting conditions it is preferable to first attach the wire/to one anchor, placing it to one side of the mold, then to pass the wire through and across the mold, thus locatingsaid anchor in place, then *to "apply the other anchor-on the opposite side ofthe-mold, engaging it with the wire, and

then by a suitable tightening device to tighten the wire to the desired tension and finally bend it, without relaxing this tension,

into engagement with the converging sides of the notch d, as abovedescribed. For'this purpose the special tightening means fully set forth in my aforesaid application Serial No. $38,585, is suitable and constitutes the preferred means for accomplishing this pur- Pose;

wire "without relaxing its-tension to be "bent It is so constructed as to enable "the down so as to carry it first into the therrower part of the notch Z) and afterward into the notch (21 and into its narrower portion, so that the wire is given a biting engagement in two places, and at the same time by being thus forcibly bent downward under tension is given a set, so that it cannot spring back. If necessary, this biting effect may be increased by striking a blow with a hammer against the wire below the flange c, which forces it deeper into the notch d. The operator may then release and disconnect the tightener and remove it. lo make the fastening of the end portion of the wire more complete and secure, the operator then,

' by meansof pliers or a hammer or otherwise,

quickly performed and results in the effective tightening of the wire to any desired tension, and its-secure anchorage, so that the concrete mold or form cannot open up under the internal or expanding pressure of the wet concrete. When the concrete has set "or solidified, and the form =.(or its lower portion is to be released, it is only necessary to either Lin-bend the wire or cut it, the latter being the usual course. Then by'remor'mg the "nail driven at g and straightening the cut end of the wire, the anchor or cleat K may be removed and preserved for repeated future use. If th'e anchor J isof the same construction, this operation maybe .performed alike on both sides of the mold. The wire may then, if desired, be pulled out from the green concrete before removing the concreting form shown in Figs; 2 and is used, where the anchor is arranged vcrtically, so as to bear upon-two closely adjoining strips E, E, the operation is modified only to the extent "that the tightener Tis swung horizontally to the left (or right) instead of downwardly, in order to draw the wire into the converging notches.

The anchors provided by the present invention are applicable to practically every known construction of concreting .forms or molds. The two simple constructions of wooden formsshown in Figs. 1,2 and 3 are proceed to describe some other constructions of anchor, which vary somewhat from that already described principally in that the gripping of the wire in the primary opening I) is omitted and the bending of the wire is eased by carrying itover a saddle. This construction avoids a difliculty which has been encountered with certain qualities of wire and under certain conditions, namely, thattlie rather sudden bend of the wire at its passage through the primary opening 6,

perhaps combined with a slight cutting effect of the converging sides of this notch as the wire is forcibly drawn down into the notch, has been found to somewhat weaken the wire, so that under extreme stress it might be ruptured. While this disadvantage has rarely been encountered, it is nevertheless desirable to guard'against it, and for this purpose the improved formof anchor shown in Figs. 5-10 may be used by preference. In each of these anchors the primary opening 6 is made wider than the wire, so that its sides do not engage the wire, and the wire is bent over a saddle M which is rounded so as to support the wire as the latter bends from its stressed portion G where it traverses the mold space, to its inclined portion G where it passes into the tapering notch d in the right-angle wall 0. The rounded exterior face of the saddle M should be given such curve as to ease the bend of the wire and avoid any liability of rupturing the latter under strain. The saddle may be variously constructed; in Figs. 5 and 6 it is shown as a section of half round rod which is applied to the wall a of the anchor and attached by spot welding or otherwise. In Figs. 7 and 8 it is formed of plate metal stamped into half round form of the crosssection shown in Fig. 7 andlocated by one edge entering the bend in the angle iron, the two edges being fastened to the angle iron by arc welding or otherwise. In Figs.

9 and 10 the saddle is formed by slitting and stamping up the metal to form the primary opening I), and curling the metal over, as shown, to form the saddle'M, it being desirable for fully supporting this saddle portion to carry its edge into the anglebetween the walls of the angle iron.

For a soft or brittle wire the construction shown in Figs. 5-10 is preferable, it being found that the gripping of the wire in the one notch d affords an ample fastening in connection with its frictional engagement with the saddle. If, however, the wire is hard and very tenacious,so that it'will endure bending without liability offracture and so that it does not yield'readily to the bite between the converging walls of the notch, then it is preferable to use the form shown in Fig.4, where the anchor has a doublegi'ip upon the wire by reason of the use of two openings with converging Walls Z). and (Z. The anchor shown in Fig. i is, of course, slightly cheaper than the one shown in Figs. 5l0.

TllG'ZUICllOI provided with the presentinvcntion is to be distinguished from wire anchorsheretofore constructed, in that the anchor has means for engagingor gripping the wire formed as an integral part of the anchor, as distinguished from applying a separate movable wire-fastening means such as a set screw. The anchor of the present invention is also to be distinguished from,

those constructions for fastening a tensile member for various other purposes than the tie wires of concrete forms or molds, in that the flat bearing surface of the ,base plate of the anchor lies in a plane perpendicular to the direction of the taut wire, so that it constitutes a bearing resisting the stress applied through the tie wirein the direct line of such stress and to the utmost mechanical advantage; whereas fastening devices having bearing surfaces located inother planes with respect to the direction of the tensile member to be fastened, are inapplicable to such use. p

I claim as my invention:

'1. An anchor for holding a taut tie-wire the wire to prevent its escape fron'rsuch gripping surfaces. I

An anchor for holding a taut tie-wire for concrcte'form's comprising a base'portion having aflat seating surface in a plane perpendicular to the taut wire, adapted to seat against the form,.andthrough which the taut wire passes so that its stress is dis tributed to the form within the area of the base, integral wire-gripping means includ ing surfaces between which the wire may be drawn, of such angular relation as'to grip and mutually hold the wire, and an integral anchoring portion around which the wire may be carried to hold it in engagement with such gripping surfaces.

3. An anchor for holding a taut tie-wire for concrete forms comprising abase portion having a flat side in a plane perpendicubetween which the wire may be drawn, of

such angular relation as to grip and mutually hold the wire, and integral means for engaging the wire to prevent its escape from such gripping surfaces. 7

4. An anchor for holding a taut wire for concrete forms, comprising a flat plate in a plane, perpendicular to the taut wire,

adapted to seat against a form, the anchor.

having an opening with converging sides adapted to grip and mutually hold the wire when drawn between them, andmtegral anchoringmeans for engagement by the wire to prevent its escape from the grip of said converging sides.

5. An anchor according to claim 4*, such integral anchoring means being an anchoring projection around which the wire may be carried to hold it in gripping engagement with the converging sides of said opening.

6. An anchor according to claim 4, having projecting portioninwnich is the opening with converging sides to grip the wire.

. 7. An anchor for holding a taut wire for concrete forms comprising a flat plate in a planeperpendicular to the taut wire adapted to seat a ainst a form and a )ro'ectin oortion, one of said parts having an opening to be entered by the wire with converging sides of such angular relation as to grip and hold the wire, and one of said parts having an choring means around which the wire may be carried to prevent its escape from said opening.

8. A wire anchor in the form of an angle plate, one side adapted to lie fiat against the form, and the other projecting therefrom, an opening in the former for the passage of the wire, and an opening in the latter with angular sides for engaging the wire, and the anchor formed with integral means for holding the wire in engagement with said latter opening.

9. A wire anchor in the form of an angle plate, one side adapted to lie flat against the form, and the other projecting therefrom and having a middle opening with angular sides for gripping the wire and a lateral notch into which the wire may be carried to hold it fast.

10. An anchor in the form of a rolled an gle plate, one of its sides having a punched opening with diverging margins of such sharpness and angular relation as to be adapted to grip the wire, and the anchor formed with integral means for holding the wire in engagement with said opening.

11. An anchor in the form of a rolled angle plate,'one of its sides having an opening the anchor havin integral means for for the free passage of the taut wire, and j' other having anchoring projections around.

which the wire may be .bent, formedwith lateral notches adapted to engage and hold the wire.

13. An anchor for a taut tie wire in. the form of an angle plate, one of its sides perpendicularto the taut wire and ha-vingan opemng'i'or the passage of the wire, and the other having-nieansi for gripping the-wire with an intervening saddlearound which the wire may bend.

14. An anchor for a taut tie-wire in the form of anangle plateyoneofits-sides perpendicular to the taut wire. and having an;

opening for the passage of the wire, and the other hav ng an open ng with converging sides to grip the wire, the anchor having a saddlearound whiclrthe w re may bend.

15. An anchor fora taut tie-wire for con-j crete forms, comprising a plate adaptedto lie flat against a form and havinga portion projecting therefrom, the former having a saddle to support the bent wire and the latter having means for-gripping the 16. An. anchor for a taut tic wire, prising a plate perpendicular to said the anchor having integral means for. ping the wire and having a-saddle which the taut wire may bend.

17. An anchor for a taut tie wire, prising a plate perpendicular to said com w re,

over saddle ping the wire andhavin'g a saddle which the taut wire may bend,-said formedas an arched metal portion.

18.;An anchor for gripping a taut tie wire comprising a plate perpendicular to said wire, the anchor having a saddle forming an arched wire support overwliich the,

taut wire may bend, said saddle formed in tegrally with the anchor.

v. i.re,com1i) rising a plate perpendicular to said wire,theanchor having a saddle over which the taut wire may bend,lsaid saddle bentup as a slitted portion of the anchor.-

20. An anchor for a taut tie-wire for concrete forms, including an elongated base,

wire.

L). An anchor for gripping taut tie and the other side projecting therefrom, an opening in the former for the wire, and an opening in the latter for receiving the Wire coming from the former, at least one of said openings having converging sides of such angular relation as to grip and hold the wire when drawn between them, and integral means for retaining the wire in the grip of such converging sides.

22. An anchor according to claim 21, the

latter side having notches into which the wire may be carried to hold it fast.

23. An anchor for a taut tie wire for concrete forms, comprising a base portion having a flat seating surface in a plane perpendicular to the taut wire and an opening for the taut wire, whereby the latter may pass through such seating surface, integral wire gripping means, and means around which the end portion of the wire may be bent to secure it to the anchor. 1

24:. An anchor for a taut tie wire for concrete forms, comprising a base portion having a fiat seating surface in a plane perpendicular to the taut wire and an opening for the taut wire, whereby the latter may pass through such seating surface, and having an opening for receiving the wire coming from said opening, and integral means around which the end portion of the wire may be bent, at least one of said openings having converging sides adapted to grip and hold the wire when drawn between them.

25. An anchor for a taut tie wire for concrete forms inthe shape of an angle plate,

I signed my name.

ROWLAND T. WALES. 

